Study of oxygen content and dielectric function of YBCO7-δ by EELS

被引：0
|
作者：
Schamm, S [1 ]
Grigis, C [1 ]
Lessik, D [1 ]
Zanchi, G [1 ]
Sevely, J [1 ]
机构：
[1] CNRS, CEMES, F-31055 Toulouse, France
来源：
ELECTRON MICROSCOPY AND ANALYSIS 1997 | 1997年 / 153期
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D O I：
暂无
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
We have measured by electron energy loss spectroscopy the energy and momentum dependence of electronic excitations for the compound YBCO7-delta as a function of delta. For the determination of the important parameter delta, we use an approach based on the study of plasmons in addition to the modelling of the O-K edge already proposed. The methods give equivalent results but the collection of the low loss signal is however easier.
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页码：335 / 338
页数：4
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